Implement -taso command line option.
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@ -1,3 +1,11 @@
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2000-07-27 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
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* emulparams/elf64alpha.sh: Implement "-taso" emulation
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specific option to fit 64-bit executable in the lower
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31-bit address range. This is done by changing start
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address of .interp (the very first section of executable)
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and then setting EF_ALPHA_32BIT elf header flag.
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2000-07-21 Michael Sokolov <msokolov@ivan.Harhan.ORG>
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2000-07-21 Michael Sokolov <msokolov@ivan.Harhan.ORG>
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* emultempl/m68kcoff.em: New file.
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* emultempl/m68kcoff.em: New file.
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@ -13,3 +13,88 @@ DATA_PLT=
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NOP=0x47ff041f
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NOP=0x47ff041f
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OTHER_READONLY_SECTIONS='.reginfo : { *(.reginfo) }'
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OTHER_READONLY_SECTIONS='.reginfo : { *(.reginfo) }'
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# This code gets inserted into the generic elf32.sc linker script
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# and allows us to define our own command line switches.
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PARSE_AND_LIST_ARGS='
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#define OPTION_TASO 300
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/* Set the start address as in the Tru64 ld */
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#define ALPHA_TEXT_START_32BIT 0x12000000
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static int elf64alpha_32bit = 0;
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static struct option longopts[] =
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{
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{"taso", no_argument, NULL, OPTION_TASO},
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{NULL, no_argument, NULL, 0}
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};
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static void
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gld_elf64alpha_list_options (file)
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FILE * file;
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{
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fprintf (file, _(
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" -taso Load executable in the lower 31-bit addressable
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virtual address range.\n"));
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}
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struct ld_emulation_xfer_struct ld_elf64alpha_emulation;
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static void gld_elf64alpha_finish ();
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static int
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gld_elf64alpha_parse_args (argc, argv)
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int argc;
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char ** argv;
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{
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int longind;
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int optc;
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int prevoptind = optind;
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int prevopterr = opterr;
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int wanterror;
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static int lastoptind = -1;
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if (lastoptind != optind)
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opterr = 0;
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wanterror = opterr;
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lastoptind = optind;
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optc = getopt_long_only (argc, argv, "-", longopts, & longind);
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opterr = prevopterr;
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switch (optc)
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{
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default:
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if (wanterror)
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xexit (1);
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optind = prevoptind;
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return 0;
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case EOF:
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if (elf64alpha_32bit && !link_info.shared && !link_info.relocateable)
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{
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lang_section_start (".interp",
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exp_binop ('\''+'\'',
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exp_intop (ALPHA_TEXT_START_32BIT),
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exp_nameop (SIZEOF_HEADERS, NULL)));
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ld_elf64alpha_emulation.finish = gld_elf64alpha_finish;
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}
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return 0;
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case OPTION_TASO:
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elf64alpha_32bit = 1;
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break;
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}
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return 1;
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}
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#include "elf/internal.h"
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#include "elf/alpha.h"
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#include "elf-bfd.h"
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static void
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gld_elf64alpha_finish ()
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{
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elf_elfheader (output_bfd)->e_flags |= EF_ALPHA_32BIT;
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}'
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